Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Income Taxes [Abstract]
Effective income tax rates for continuing operations	(5.20%)	31.60%	12.10%	28.10%
Change in tax rate	(12.50%)		(3.90%)
Provisional income tax expense	$ (7.1)
Transitional tax for accumulated foreign earnings, Income tax expense	(4.1)
Reassessment of the U.S. deferred tax assets and liabilities	$ (3.0)